Portable light bulb system



FIG. 1 is a top perspective view of a portable light bulb system according to a new design.

FIG. 2 is a rear view of the portable light bulb system shown in FIG. 1.

FIG. 3 is a left side view of the portable light bulb system shown in FIG. 1.

FIG. 4 is a front view of the portable light bulb system shown in FIG. 1.

FIG. 5 is a right side view of the portable light bulb system shown in FIG. 1.

FIG. 6 is a top view of the portable light bulb system shown in FIG. 1.

FIG. 7 is a bottom view of the portable light bulb system shown in FIG. 1.

FIG. 8 is a top perspective view of a second embodiment of a portable light bulb system according to a new design.

FIG. 9 is a rear view of the portable light bulb system shown in FIG. 8.

FIG. 10 is a left side view of the portable light bulb system shown in FIG. 8.

FIG. 11 is a front view of the portable light bulb system shown in FIG. 8.

FIG. 12 is a right side view of the portable light bulb system shown in FIG. 8.

FIG. 13 is a top view of the portable light bulb system shown in FIG. 8; and,

FIG. 14 is a bottom view of the portable light bulb system shown in FIG. 8.

Features shown in broken lines in the drawings are not part of the claim. 

CLAIM I claim the ornamental design for a portable light bulb system, as shown and described. 